SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('a62cb4ec41002ce27a0c4ac4001dab29','0','18.221.187.121','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714649782','board.php?boardid=136&sid=6340a4c9707f39699460637eb5a0dd88','0','0','')
mysql error: Duplicate entry 'a62cb4ec41002ce27a0c4ac4001dab29' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 13:36
Script: /board.php?boardid=136&sid=6340a4c9707f39699460637eb5a0dd88
Referer: